1094561738 has 4 divisors (see below), whose sum is σ = 1641842610. Its totient is φ = 547280868.

The previous prime is 1094561737. The next prime is 1094561801. The reversal of 1094561738 is 8371654901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8371654901 = 16943 ⋅494107.

It can be written as a sum of positive squares in only one way, i.e., 1090122289 + 4439449 = 33017^2 + 2107^2 .

It is not an unprimeable number, because it can be changed into a prime (1094561737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273640433 + ... + 273640436.

Almost surely, 2^1094561738 is an apocalyptic number.

1094561738 is a deficient number, since it is larger than the sum of its proper divisors (547280872).

1094561738 is an equidigital number, since it uses as much as digits as its factorization.

1094561738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547280871.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 1094561738 is about 33084.1614371590. The cubic root of 1094561738 is about 1030.5761498374.

The spelling of 1094561738 in words is "one billion, ninety-four million, five hundred sixty-one thousand, seven hundred thirty-eight".